Question

x2-x-2

Answer 1

How do you have two questions open at the same time?

Answer 2

wats the answer I dnt get diz new page

Answer 3

@skullpatrol, help him

Answer 4

x^2 - x - 2
x^2 - x + 2x - 2
x(x - 1) + 2(x - 1)
(x - 1)(x + 2)

Answer 5

If you don't understand, hire a personal tutor.

Answer 6

^lol

Answer 7

@Hero Good one :D

Answer 8

factorization of a quadratic \[(x+a)(x+b)=x^2+(a+b)x+a\times b\]
\[x^2 - x - 2\]
the factors of the scalar term
\[a\times b=-2=\pm1\times\pm2\]

the sum of the factors equals the coefficient of liner term
\[(a+b)=-1=+1+-2\]
\[x^2 - x - 2\]\[=(x + 1)(x - 2)\]


to check we have the correct factorisation, expand the brackets

\[(x + 1)(x - 2)=x^2 +(1-2)x +(1\times-2)\]\[\qquad\qquad\qquad=x^2 - x - 2\quad\checkmark \]

Answer 9

@Hero